Create a Mediterranean-inspired garden oasis by combining decorative archways with climbing roses. Choose archways with intricate designs and earthy colors like terracotta or olive green. Plant climbing roses with vibrant and bold colors like deep red or orange to mimic the vibrant hues of the Mediterranean landscape. Surround the archways with fragrant herbs like lavender, rosemary, and thyme to create a sensory experience. Add a water feature like a fountain or a small pond to complete the tranquil Mediterranean ambiance.